Can someone identify these phenomena?

vinirn

These videos were recorded at Angicos, a small town of Brazil. They are records of the same phenomenon. Can someone identify it? A tornado? A gustnado? A dust evil?

Evo

Looks like a tornado to me.

Evo

I only glanced at the first one.

Dust devils then.

http://www.youtube.com/watch?v=YoBhgKXIGXI

davenn

The first one is a gustnado often seen along the gust front of an approaching storm
its not in the right place in the stormcell for it to be a tornado.

The second one is very indistinct... I will go with gustnado for similar reasons to the first videoclip.

the third one hmmmmm.... unfortunately the cloudbase directly above the rotation was never shown and without that info I cannot tell you if its a gustnado or a tornado

That one really got its act together after coming off the water, didnt it !! cool

I get to see all sorts of wonderful things like that during my stormchasing trips around the USA and Australia

All 3 are clearly related to the storm activity which makes them gustnadoes / tornadoes
its their positional relationship to the stormcell which determines which of those 2 they are.
They are all typical vortex's ... there is no question of that! :)

Evo's video clearly shows a very nice dust devil ( willi willi in Australia, Aboriginal name for them) Often seen on sunny summer days when heat rising from the hot dry ground can start rotating. Travelling through the outback of Australia, my wife and I have seen many dust devils, sometimes 2 - 3 visible at the same time spread across the landscape

cheers
Dave

Evo

Ooh, thanks Dave, that's why I couldn't tell why it looked like a mix between a tornado and a dust devil, it's a gustnado. Never heard of it, and I live in the midwest.

http://tamunews.tamu.edu/2011/06/15/gustnadoes/